[GOPAPA]

One factor not mentioned is what side of the garage are you going to enter it from ? If its from the Gable end ,,then you can make a much larger entry becasue of the roof support . A 24 foot entry on the rafter support side is about all you can span unless a lot of extra support (like a metal beam ) or center post at th entry .

If I were to build another garage and wanted to keep the cost down I would build one with the entry on the Gable end . 28 wide X 32 deep " this will will let you have 2 cars along side of each other and still room to open the doors with room to get around them .. the work bench would be at the rear of the garage and would be the full 28' wide,shelves ,drawers and some open space for compressor ect ect.

Sure, bigger is always better ,but smaller costs less and this size will let do both ,cost less and still be roomy enought to keep you from saying you wish you had at least built it it 2 foot wider.. papa